title: Psychophysical measurement of the blur on the retina due to optical aberrations of the eye.
abstract: The blur on the retina in the horizontal meridian due to monochromatic and chromatic aberrations has been measured using a novel psychophysical technique. Longitudinal chromatic aberration gives the dominant blur for pupil sizes of 4-5 mm, followed by monochromatic aberrations, and blur due to optical transverse chromatic aberration. In some eyes, coma was present as a result of a displacement of the axis of symmetry from the centre of the pupil, but in three eyes, coma was present without spherical aberration. The technique also allows a measurement of the effective pupil centre relative to the geometric centre and a partial analysis of the relative positions of the reference axes of the eye.
authors.affiliation: School of Optometry, University of Waterloo, Ontario, Canada.
authors.forename: M C
authors.initials: MC
authors.lastname: Campbell
authors.forename: E M
authors.initials: EM
authors.lastname: Harrison
authors.forename: P
authors.initials: P
authors.lastname: Simonet
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008433:Mathematics; D010469:Perceptual Distortion / Q000502:physiology*; D011601:Psychophysics / Q000379:methods*; D011680:Pupil / Q000502:physiology; D012029:Refraction, Ocular; D012160:Retina / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology*